PLA is one of the few types of plastic suitable not only for 3-D printers but for some biodegradable medical items such as suture threads.

PLA是少数不仅适3D打印机，而且适制造缝等可生物降解医疗用品塑料材料之一。

Here's an example of an absorbable suture.

这是可缝示例。

Every single eye on earth will see a slightly different starlike smear depending on the exact nature of its suture lines - even your left and right eyes will differ!

世界上每双眼睛看到星星形状都稍微有所不同，取决于缝具体情况甚至你左右眼看到也不一样！

Fibrous joints connect bones with dense fibrous connective tissue, and are mostly immovable — like those sutures between your skull bones.

纤维关节将骨骼和致密纤维结缔组织连接起来，并且大多是不可移动——就像头盖骨之间缝一样。

For instance, if there's a tendon that's been cut and we're repairing that, a lot of times, we're gonna use a non-absorbable suture.

例如，如果有一根肌腱被切断了，而我们要修复它，很多时候，我们会使用不可缝。

Similarly, the lenses of our eyes have subtle structural imperfections called suture lines where the fibers that make up the lens meet.

我们眼睛晶状体也相似地有一种微妙结构缺陷——缝，它是构成晶状体纤维连接处。

Asking for myself because I have both ends of a suture sticking out of my abdomen.

问问我自己，因为我腹部缝两端都伸出来了。

Also I should mention, there are absorbable sutures and there are non-absorbable sutures.

还有一点我要说是，有可缝和不可缝。

This is a monofilament type suture, meaning it's one long filament.

这是一种单丝类型缝，这意味着它是一根长丝。

Dissolvable sutures, they are supposed to, supposed to take about seven to 10 days to dissolve, depending on the suture material.

根据缝材料不同，可溶解缝应该需要大约 7到 10 天才能溶解。

You also used thread if you are going to the doctor and having surgery and they put a hole in your body, you'll need surgical thread to close that.

如果你要去医院做手术，在他们给你身体开刀后，你需要缝来闭伤口。

So sutures, staples, screws: this is how we put you back together if you've had some surgery or an injury.

所以缝、订书钉、螺丝钉：如果你做过手术或受伤，我们就是这样让你恢复原样。

External stitches, or sutures, are used to hold two sides of an open wound together while they heal.

外部缝或缝用于在愈时将开放性伤口两侧固定在一起。

The swelling subsided, and the wound healed with time. Soon, it was just a pink jagged line running up from his lip.

随着时间过去，肿胀消退，伤口弥。不久，他嘴唇上就只剩下一道弯弯曲曲缝。

As a general rule, if your cut is longer than a centimeter, your doctor will probably use sutures to get it closed.

作为一般规则，如果您切口长于一厘米，您医生可能会使用缝将其闭。

Sometimes, doctors will use these absorbable sutures externally, too.

有时， 医生也会在外部使用这些可缝。

For one thing, absorbable sutures can take a month or two to dissolve.

一方面， 可缝可能需要一两个月才能溶解。